Correlation of Vapor Pressure at Different Temperatures by Clausius Clapeyron Equation Calculator
P1 & P2 = Initial & Final Pressure ; ΔvapHm = Molar Enthalpy of vaporization ; T1 , T2 = Initial & Final Temperature ; R= Gas Constant ;
This online chemical calculator is based on the Clausius Clapeyron Equation. If a liquid is placed in an evacuated vessel then the empty space above liquid is filled with the vapor of that liquid. The pressure of this vapor is termed as the vapor pressure of the liquid. This vapor pressure is related to the temperature of the system. Two vapor pressures at two temperatures is related by the above equation.